| Paper Abstract and Keywords |
| Presentation |
2007-05-18 16:25
On Onewayness of Key-Scheduling Algorithms for eSTREAM's Ciphers
Yoshiaki Fujikawa, Toshihiro Ohigashi, Hidenori Kuwakado, Masakatu Morii (Kobe Univ.) |
| Abstract |
(in Japanese) |
(See Japanese page) |
| (in English) |
In the stream cipher, the initial state is generated from a secret key and an initalization vector (IV) in key-scheduling algorithm (KSA). In order to provide hight-level security, onewayness of the KSA is requested. The ECRYPT Stream Cipher Project (eSTREAM), which selects next generation's stream ciphers, is being encouraged now, and many stream ciphers have been proposed. In this paper, we analyze onewayness of the KSA for several eSTREAM's ciphers. As a result, we show that the KSAs of Dragon, Grain-128(Grain-1.0), HC-256(HC-128) and Trivium are not oneway and the secret key can be recovered easily from the initial state. |
| Keyword |
(in Japanese) |
(See Japanese page) |
| (in English) |
stream cipher / eSTREAM / key-scheduling algorithm / onewayness / / / / |
| Reference Info. |
IEICE Tech. Rep., vol. 107, no. 44, ISEC2007-14, pp. 93-99, May 2007. |
| Paper # |
ISEC2007-14 |
| Conference Information |
| Committee |
ISEC |
| Conference Date |
2007-05-18 - 2007-05-18 |
| Place (in Japanese) |
(See Japanese page) |
| Place (in English) |
Kikai-Shinko-Kaikan Bldg. |
| Topics (in Japanese) |
ˆê”Ê |
| Topics (in English) |
|
| Paper Information |
| Registration To |
ISEC |
| Conference Code |
2007-05-ISEC |
| Language |
Japanese |
| Title (in Japanese) |
(See Japanese page) |
| Sub Title (in Japanese) |
(See Japanese page) |
| Title (in English) |
On Onewayness of Key-Scheduling Algorithms for eSTREAM's Ciphers |
| Sub Title (in English) |
|
| Keyword(1) |
stream cipher |
| Keyword(2) |
eSTREAM |
| Keyword(3) |
key-scheduling algorithm |
| Keyword(4) |
onewayness |
| Keyword(5) |
|
| Keyword(6) |
|
| Keyword(7) |
|
| Keyword(8) |
|
| 1st Author's Name |
Yoshiaki Fujikawa |
| 1st Author's Affiliation |
Kobe University (Kobe Univ.) |
| 2nd Author's Name |
Toshihiro Ohigashi |
| 2nd Author's Affiliation |
Kobe University (Kobe Univ.) |
| 3rd Author's Name |
Hidenori Kuwakado |
| 3rd Author's Affiliation |
Kobe University (Kobe Univ.) |
| 4th Author's Name |
Masakatu Morii |
| 4th Author's Affiliation |
Kobe University (Kobe Univ.) |
| 5th Author's Name |
|
| 5th Author's Affiliation |
() |
| 6th Author's Name |
|
| 6th Author's Affiliation |
() |
| 7th Author's Name |
|
| 7th Author's Affiliation |
() |
| 8th Author's Name |
|
| 8th Author's Affiliation |
() |
| 9th Author's Name |
|
| 9th Author's Affiliation |
() |
| 10th Author's Name |
|
| 10th Author's Affiliation |
() |
| 11th Author's Name |
|
| 11th Author's Affiliation |
() |
| 12th Author's Name |
|
| 12th Author's Affiliation |
() |
| 13th Author's Name |
|
| 13th Author's Affiliation |
() |
| 14th Author's Name |
|
| 14th Author's Affiliation |
() |
| 15th Author's Name |
|
| 15th Author's Affiliation |
() |
| Speaker |
1 |
| Date Time |
2007-05-18 16:25:00 |
| Presentation Time |
25 |
| Registration for |
ISEC |
| Paper # |
IEICE-ISEC2007-14 |
| Volume (vol) |
IEICE-107 |
| Number (no) |
IEICE-ISEC-44 |
| Page |
pp.93-99 |
| #Pages |
IEICE-7 |
|